using System;
using System.Threading.Tasks;
using Microsoft.Playwright;

namespace FinlyticNews.Adapters.Scraping;

/// <summary>
/// Specialized article scraper adapter for Ariva.de.
/// </summary>
public class ArivaScraperAdapter : ArticleScraperAdapter
{
    public override string Hostname => "ariva.de";

    public override string ArticleBodySelector => "#news_teaser, div.readable, div.column.twothirds";

    public override async Task<ScrapedArticleResult?> ExtractArticleContentAsync(IPage page)
    {
        // Remove forum widgets, ad containers, and comments before extraction
        await page.EvaluateAsync(@"() => {
            const el = document.querySelectorAll('#forum_box, #basics-indices-modal, #nativendo-article-desktop, .action-buttons, .summary');
            el.forEach(e => e.remove());
        }");

        var titleLocator = page.Locator("#news_title").First;
        string title = string.Empty;
        if (await titleLocator.CountAsync() > 0)
        {
            title = CleanTitle(await titleLocator.InnerTextAsync());
        }

        var teaserLocator = page.Locator("#news_teaser").First;
        if (await teaserLocator.CountAsync() > 0)
        {
            var text = await teaserLocator.InnerTextAsync();
            var cleaned = TruncateDisclaimers(text.Trim());

            return new ScrapedArticleResult(
                Title: !string.IsNullOrWhiteSpace(title) ? title : CleanTitle(await page.TitleAsync()),
                TextContent: cleaned,
                HtmlContent: await teaserLocator.InnerHTMLAsync(),
                Author: "ARIVA.DE",
                Excerpt: cleaned.Length > 250 ? cleaned[..250] + "..." : cleaned,
                FinalUrl: page.Url
            );
        }

        return await base.ExtractArticleContentAsync(page);
    }
}